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24 results for “Allium cepa”
Figure 1 in Integrative analysis in toxicological assessment of the insecticide Malathion in Allium cepa L. system
Figure 1. Rates of alterations found for Allium cepa cells exposed for 48h to distilled water (H O – negative control), 0.5 mg mL-1, 2 d 1.0 mg mL-1 of Malathion and methyl methanesulfonate (MMS – positive control), concerning: (A) anaphase bridge; (B) chromosome loss; (C) chromosome delay; (D) micronuclei index. KW-H = results of Kruskal-Wallis test and p = value of the statistical probability. Letters on the error bars indicate the result of the statistical Mann-Whitney U test.
Figure 3 in Integrative analysis in toxicological assessment of the insecticide Malathion in Allium cepa L. system
Figure 3. Discriminant canonical function, showing the distribution of the centroids e of the groups of the different treatments; 1: treatment submitted to distilled water; 4: positive control with MMS; 2 and 3: groups exposed to Malathion, for 0.5 e 1.0 mg mL-1 concentrations, respectively.
Figure 2 in Integrative analysis in toxicological assessment of the insecticide Malathion in Allium cepa L. system
Figure 2. Mitotic index at the radicular meristematic region of Allium cepa cells, after exposure for 48 hours to distilled water (H Od – negative control), 0.5 mg mL-1, 1.0 mg mL-1 of Malathion 2 and methyl methanesulfonate (MMS – positive control). KW-H = results of Kruskal-Wallis test and p = value of the statistical probability. Letters on the error bars indicate the result of the statistical Mann-Whitney U test.
Figs 2A-F in Antiproliferative and genotoxic potential from extracts and fractions of Richardia brasiliensis Gomes (Rubiaceae) by the Allium cepa L. test system
Figs 2A-F. Meristem cells of Allium cepa root strain submitted to treatments with extracts and fractions of Richardia brasiliensis. A. Cell binucleada; B. cell with micronucleus (long black arrow); C. Disorganized prophase (short black arrow); D. Break chromosome (short arrow unfilled) in metaphase; E. Anaphase bridge; F. Break chromosome in telophase. Bars = 10 µm.
Allium cepa L. (BR0000011218975)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Allium cepa L. (BR0000011219361)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Allium cepa L. (BR0000011219903)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Figure 2 in First report of Spodoptera frugiperda (Lepidoptera: Noctuidae) on Onion (Allium cepa L.) in South Kivu, Eastern DR Congo
Figure 2 Mean (±S.E) incidence of Spodoptera frugiperda in onion as a function of season and cropping system. 24 plots were considered in each cropping system. A and B represents the incidence in 2019 and 2020 respectively.
Figure 1 in First report of Spodoptera frugiperda (Lepidoptera: Noctuidae) on Onion (Allium cepa L.) in South Kivu, Eastern DR Congo
Figure 1 Spodoptera frugiperda larvae occurring in the onion crop at the experimental site. A: lesions induced on onion leaf epidermis; B: sixth instar larvae found inside onion leaves; C: severity of damage and faecal pellets in whorl of the onion plant; D: fifth instar larva found on the onion plant.
Figure 4 in First report of Spodoptera frugiperda (Lepidoptera: Noctuidae) on Onion (Allium cepa L.) in South Kivu, Eastern DR Congo
Figure 4 Rates of attack severity of Spodoptera frugiperda according the kind of onion crops. A and B: severity in 2019 and in 2020 respectively. 0: no visible leaf damage; 1: small lesions on leaf epidermis; 2: Small elongated (rectangular shaped) lesions (5) of up to 1.3 cm in length on leaf epidermis; 3: Several small to mid-sized 1.3 to 2.5 cm in length elongated lesions (5-10) on several leaves; 4: Several large elongated lesions (˃10), greater than 2.5 cm in length present on several leaves; 5: leaves almost completely destroyed.
Fig 1 in Occurrence of green semilooper Chrysodeixis acuta Walker (Lepidoptera: Noctuidae) in onion (Allium cepa L.) (Amaryllidaceae)
Fig 1. Damage of onion plant due to Chrysodeixis acuta feeding and life stages. (A) Onion plant showing leaf scrapping symptom; (B) bore holes on the leaf due to Chrysodeixis acuta feeding; (C) onion plant defoliated by Chrysodeixis acuta; (D) life stages of Chrysodeixis acuta; (D) caterpillar; (E) silken pupa; (F) adult moth.
Fig 2 in Occurrence of green semilooper Chrysodeixis acuta Walker (Lepidoptera: Noctuidae) in onion (Allium cepa L.) (Amaryllidaceae)
Fig 2. Green-looper population (Mean ± SE) and damage (Mean ± SE) in onion at weekly intervals in kharif onion (2017–2018).
Onion (Allium cepa) pseudoreference genome
<p>Onion (<i>Allium cepa</i>) is not highly tractable for development of molecular markers due to its large (16 gigbases per 1C) nuclear genome. Single nucleotide polymorphisms (SNPs) are useful for genetic characterization and marker-aided selection of onion because of codominance and common occurrence in elite germplasm. We completed genotyping by sequencing (GBS) to identify SNPs in onion using 46 F2 plants, parents of the F2 plants (Ailsa Craig 43 and Brigham Yellow Globe 15-23), two doubled haploid (DH) lines (DH2107 and DH2110), and plants from 94 accessions in the USDA National Plant Germplasm System (NPGS). SNPs were called using the TASSEL 3.0 Universal Network Enabled Analysis (UNEAK) bioinformatics pipeline. Sequences from the F2 and DH plants were used to construct a pseudo-reference genome against which genotypes from all accessions were scored. Quality filters were used to identify a set of 284 high quality SNPs which were placed onto an existing genetic map for the F2 family. Accessions showed a moderate level of diversity (mean <i>H<sub>e</sub> </i>= 0.341) and evidence of inbreeding (mean <i>F</i> = 0.592). GBS is promising for SNP discovery in onion, although lack of a reference genome required extensive custom scripts for bioinformatics analyses to identify high quality markers.</p>
Effect of Intake of Allium Cepa L. Peel Heated Water Extract on Immunity Enhancement
ClinicalTrials.gov study NCT05666752. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Effect of Allium Cepa in the Management of Shoulder Pain Post Stroke
ClinicalTrials.gov study NCT03468049. IPD Sharing: UNDECIDED. Countries: 1. Publications: 7.
Onion (Allium cepa) pseudoreference genome
Open the record for dataset details and reuse information.
Figs. 1A-D in Antiproliferative and genotoxic potential from extracts and fractions of Richardia brasiliensis Gomes (Rubiaceae) by the Allium cepa L. test system
Figs. 1A-D. Meristem cells of Allium cepa root strain submitted to treatments with extracts and fractions of Richardia brasiliensis. A. Normal cells in interphase and prophase (long black arrow); B. Normal cell in metaphase (short black arrow) and telophase (short black arrow with filling); C. Normal cell in metaphase; D. Normal cell in anaphase (long arrow unfilled). Bars = 10 µm.
Allium cepa L. (BR0000011219637)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Allium cepa L. (BR0000010800553)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Allium cepa L. (BR0000011219309)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
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